Automatic control apparatus



March 3, 1964 s. c. CLARK, JR., ETAL 3,123,657

AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 53 Sheets-Sheet l- FIG. IC

STEPHEN C.CLARK,JR.

' JOHN E. JONES INVENTORS ATTO R N EY March 3, 1964 s. c. CLARK, JR., ETAL 3,123,657

AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 55 Sheets-Sheet 2 FIG. ID

FIG. IE

March 3, 1964 s. c. CLARK, JR., ETAL 3,

AUTOMATIC CONTROL APPARATUS Filed March '7, 1962 3 Sheets-Sheet 5 FIG.4E

co GN- PULSE PRESENT NDRMAL STATE FOR OPERATION F'G .4F H G 4B Yfllfi a F e u AT a A a A+a ELECTRONIC SET To 0 STATE 0 o no CHANGE o o o ELECTRONIC SET I I 0 I I 0 TO I STATE o o i o i o HOLDS ao'ru OUTPUTS AT I I 0 0 I I I 0 0 LEVELEIFAJTI c o c SET TRIGGER RESET TRIGGER A 5 SET f Ic RESET STEERING STEERING A s a H H -F j I ELECTRONIC ELECTRONIC $51 6 H RESET H G ,4A OUTPUT OUTPUT FIG.4C

March 3, 1964 s. c. CLARK, JR, ETAL 3,

AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 53 sheets sheet 6 IN PUTS OUTPUTS c 0 A e PULSE MAY 95 MAY BE PRESENT n- OR ABSENT o QRI .o o '5 Ill 0 o 3 o o o o \ll 0 o g o o o o d o '2 0 O u E o o c 0 s51- rmsssn RESET TRIGGER SET STEERING B RESET STEERING E F ELECTRONIC s51 ELECTRONIC RESET OUTPUT OUTPUT March 3, 1964 s. c. CLARK, JR., ETAL 3,123,657

AUTOMATIC CONTROL APPARATUS Filed March 7 Q 33 Sheets-Sheet 7 N mm z u x w z a z 0 com 00 com 8.

NBN

wow

u: on

VON KmFZDOO mozmmmuum twtutwzw MON March 3, 1964 s. c. CLARK, JR., ETAL 3,123,657

AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 33 Sheets-Sheet 8 FIG.5B

2 4 HGHGHGI-I COMPARA ZERO RECOGNITION no 20 40 so rl G H H G Y-AXIS DISTANCE COUNTER March 3, 1964 s. c. CLARK, JR, ETAL- 3,

AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 5 Sheets-Sheet 9' TRANSFER RESET 25 & a I n FIG.5C

March 3, 1964 s. c. CLARK, JR.. ETAL AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 33 Sheets-Sheet 10 IO 20 40 BO 230 GHGMGHGH IO 20 40 BO onencus a F l G .50

FIG .5E

FIG.5A

nssc

mass

FIG.5B

March 3, 1964 s. c. CLARK, JR., ETAL 3,123,557

AUTOMATIC CONTROL APPARATUS 55 Sheets-Sheet 11 Filed March 7, 1962 wdE uoduwo .562

March 3, 1964 s. c. CLARK, JR., ETAL 3 ,6

AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 53 Sheets-Sheet 13 Q N n 1' no u: ro m l u u n I u u u I I O z FIG 7B F|G.7C.

FIGTA FIG 78 FIG 1c March 3, 1964 s. c. CLARK, JR., ETAL 3, 5

AUTOMATIC CQNTROL APPARATUS Filed March '7, 1962 53 Sheets-Sheet 14 PULSE RATE MULTIPLIER PATTERNS 8A.

1 IL 11 n n n n n n n 1 T 3 l 2 a 4 s s 1 a 9 no l-2-4-3 COUNTER STATES 304 1 I l l l I l I March 3, 1964 s. c. CLARK, JR.. ETAL 3,

AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 I55 Sheets-Sheet l6 |2-4-5 COUNTER WITH |-24-5 COMMAND cogs 354 M F! 2 G-5-l 355 W I G-5-2-T COMB.

358 J' l ['1 2 6.5.41 359 F 1 0-5-2 l sec I 6-52 an 6-5 4 1-2-4-5 COUNTER WITH [-2-4-7COMMAND FIG.8A

FIG.8B

naec

mean

March 3, 1964 s. c. CLARK, JR. ETAL 3,123,657

AUTOMATIC CONTROL APPARATUS 53 Sheets-Sheet 17 Filed March 7, 1962 March 3, 1964 s. c. CLARK, JR, ETAL 7 AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 35 Sheets-Sheet 19 vr- E m E 4 A '5 o O 1::

FIG. I2

March 3, 1964 s. c. CLARK, JR, ETAL 3, 7

AUTOMATIC CONTROL APPARATUS Filed March 7, 1962 55 Sheets-Sheet 2O 7 FROM"50"FLlP-FLOP 2m- DECADE 206 u u FROM 50 FLIP-FLOP 2m DECADE 206 |34 I35 FIG. l3 

1. APPARATUS FOR AUTOMATICALLY COMPENSATING FOR THE EFFECT ON A WORK PIECE OF THE THICKNESS OF A CUTTING ELEMENT, OR FOR CHANGES IN SAID THICKNESS, USED IN A NUMERICAL CONTOURING CONTROL SYSTEM CAPABLE OF EXECUTING BOTH LINEAR AND CIRCULAR INTERPOLATION, COMPRISING: MEANS FOR GENERATING A PULSE TRAIN WHOSE PULSE RATE IS DIRECTING PROPORTIONAL TO THE DESIRED RESULTANT TRANSLATIONAL VELOCITY OF SAID CUTTING ELEMENT RELATIVE TO SAID WORK PIECE FOR THE CUT THEN BEING EXECUTED; A ROTABLE UTILIZATION DEVICE; AND CONTROL CIRCUIT MEANS RESPONSIVE TO SAID PLUSE TRAIN AND COUPLED TO SAID ROTATABLE UTILIZATION DEVICE FOR ROTATING SAID UTILIZATION AT AN ANGULAR RATE DIRECTLY PROPORTIONAL TO SAID PULSE TRAIN''S PULSE RATE. 